Foz tries to play an old Spanish guitar, and Xuli is delighted when her first ever souvenir selfie flutters out of it. It shows her on holiday as a child in a Spanish town with her long-lost friend Maria. Foz suggests they visit Maria, but there is a problem: Xuli was so young when she used to holiday there that she can't remember where it was! Luckily, Foz's keen eyes quickly spot an important clue, and soon they are searching across Spain in hope of a reunion.
